Configuring Social Media Sign-In with External Identities
Your organization uses Microsoft Entra ID to manage user identities. You need to ensure that users can sign in using their existing social media accounts, such as Microsoft, Google, or Facebook. What should you configure?
Quick Answer
The correct answer is to configure External Identities and add identity providers for social networks. This is because Microsoft Entra ID’s External Identities feature is specifically designed to support social media sign-in by federating with providers like Microsoft, Google, and Facebook using OAuth 2.0 or OpenID Connect protocols, allowing users to authenticate with their existing social accounts without creating separate Entra ID accounts. On the MS-102 exam, this scenario tests your understanding of identity federation versus direct user provisioning—a common trap is confusing External Identities with B2B collaboration guest users, but the key distinction is that social sign-in relies on configuring identity providers under the External Identities blade, not inviting external users manually. For a quick memory tip, think “Social = External Provider” to remember that social media sign-in always requires adding an external identity provider, not just enabling self-service sign-up.
⚠ Common exam trap
Many candidates confuse Conditional Access policies with identity provider configuration, thinking policies can add or manage external authentication sources, when in fact Conditional Access only enforces rules on already-configured providers.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure External Identities and add identity providers for social networks
Microsoft Entra ID supports External Identities, which allow you to add social identity providers (Microsoft, Google, Facebook) as external authentication sources. This enables users to sign in with their existing social accounts by configuring federation with those providers using OAuth 2.0 or OpenID Connect protocols, without needing to create separate Entra ID accounts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure Conditional Access policies for social identity providers
Why it's wrong here
Conditional Access evaluates signals and enforces grant or session controls on sign-ins; it does not create the trust relationship with Google, Facebook or Microsoft accounts. It is tempting because it governs authentication behaviour, and it is correct when restricting or requiring MFA for existing sign-ins.
- ✓
Configure External Identities and add identity providers for social networks
Why this is correct
External Identities lets you federate with social providers such as Microsoft, Google, and Facebook, so users sign in with existing accounts rather than new Entra ID credentials. This directly satisfies the requirement for social media sign-in.
- ✗
Configure Microsoft Entra Connect to sync social account attributes
Why it's wrong here
Entra Connect synchronises on-premises directory objects into Microsoft Entra ID; it cannot federate consumer Google, Facebook or Microsoft accounts. Social sign-in requires configuring each provider as an external identity provider, which is what the scenario demands.
- ✗
Configure self-service password reset (SSPR)
Why it's wrong here
SSPR lets users reset their own passwords and unlock accounts; it does not federate external identity providers, so social accounts still cannot authenticate. It is tempting because it reduces sign-in friction, and it is correct when the requirement is credential recovery rather than external identity federation.
Go deeper
Related to this question
Learn chapter
Privileged Identity Management (PIM) for Admins
Key term
Microsoft Entra ID
Microsoft Entra ID is a cloud-based identity and access management service that lets employees sign in and access resources both inside and outside of your organization.
Key term
Access token
A digital key that a computer system gives you to prove your identity and grant you permission to access specific resources or perform actions.
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Same concept, more angles
1 more way this is tested on MS-102
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your organization uses Microsoft Entra ID to manage user identities. You need to ensure that users can sign in using their existing social media accounts, such as Google or Facebook. Which identity solution should you configure?
easy- ✓ A.External identities
- B.Microsoft Entra B2B collaboration
- C.Managed identities
- D.Microsoft Entra Identity Protection
Why A: External identities in Microsoft Entra ID allow you to configure identity providers such as Google and Facebook, enabling users to sign in with their existing social media accounts. This is achieved by setting up federation with OAuth 2.0 and OpenID Connect protocols, which is the correct solution for the scenario described.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MS-102 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MS-102 exam.